Fountain pen



FIG. 1 is a side view of the fountain pen;

FIG. 2 is a front view thereof;

FIG. 3 is the rear view thereof;

FIG. 4 is a perspective view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a perspective view in an exploded condition; and,

FIG. 8 is a front elevational view in an exploded condition. 

I claim the ornamental design for a fountain pen, as shown and described. 